THREE-LAYER PANEL Russian patent published in 2007 - IPC E04C2/26 

FIELD: building elements of relatively thin form for the construction of parts of buildings, for instance sheet materials, slabs or panels.

SUBSTANCE: three-layer panel comprises upper and lower coatings connected with each other by glue and heat insulation layer made of rock wool with transversal fiber directions. The heat insulation layer consists of separate lamellas in length and width directions. The lamellas are shifted one relatively another in heat insulation length direction. Mesh of synthetic material, for instance of polypropylene, is arranged between the heat insulation layer and coatings. The mesh is provided with spikes extending into heat insulation layer and located in mesh points. Mesh has opening at least twice as small as lamella dimensions.

EFFECT: increased load-bearing capacity.

2 dwg